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Campus Alert Archive
UH System

Flooding, April 10, 2026

AI-generated · every claim is source-linked
HIfloodingemergency notificationhigh confidence
Confirmed Threat

On April 10, 2026, a powerful Kona low pressure system generated historic rainfall across Oahu, prompting Governor Josh Green to close all state government offices and the University of Hawaii system to close all Oahu campuses and facilities, including UH Manoa, UH West Oahu, Kapiolani Community College, Honolulu Community College, Leeward Community College, Windward Community College, and Hawaii Pacific University facilities. Residents were strongly discouraged from traveling unless absolutely necessary.

Alerts
3
Response
Killed
0
Injured
0
Institution
University of Hawaii System
Public R1 · HI
All UH System cases →
~50,000 studentsUH RAVE Alert / UH Emergency
Documented Timeline

Alert Sequence

3 messages in sequence · 1 verified verbatim

Confirmed wording is transcribed character-for-character from a primary source. Use Verify this quote under each message to open that source in a new tab and compare the text yourself.

Some messages in this sequence are documented (their existence, timing, and channel are sourced) but their exact wording is not preserved in the public record. Those entries appear as placeholders; only confirmed text is displayed.

INITIAL ALERTEmail
Verified verbatim1648 chars
All state and county offices on Oʻahu, including all University of Hawaiʻi campuses and facilities on Oʻahu, will be closed Friday, April 10, due to expected severe weather conditions. A decision regarding government offices and UH facilities in Maui County and Hawaiʻi County will be made early Friday morning. The official announcements for Oʻahu were issued at 6:40 p.m., Thursday, April 9, by Gov. Josh Green and Honolulu Mayor Rick Blangiardi. Forecasts from the National Weather Service indicate a prolonged period of heavy rain through the morning and into the afternoon on Oʻahu, with the potential for flash flooding and possible power disruptions. Residents are strongly encouraged to limit travel unless absolutely necessary to allow emergency responders and utility crews to address weather-related impacts. University leadership continues to monitor conditions closely and will provide updates as additional information becomes available. Official County Notification Conditions will vary by county and location. The most timely and location-specific alerts will come from the county where you live. Sign-up information for each county’s notification system is provided below: City and County of Honolulu ( Oʻahu ) Maui County Hawaiʻi County You may also monitor these trusted sources for real-time weather updates: National Weather Service Hawaiʻi Emergency Management Agency The Pacific Disaster Center’s Disaster Alert app UH RAVE Alert System For added safety, all UH students, faculty and staff are encouraged to sign up for mobile alerts through the UH RAVE Alert system to receive emergency notifications directly.
Verbatim UH System News official campus-closure announcement (all Oʻahu UH campuses and facilities).
Replaces reconstructed UH System Notice SMS/email synthesis; institutional public message used as transmitted community notice.
UPDATEPush
Wording not preserved

A update message is documented at this point in the sequence, but its exact wording is not preserved in the public record. The public edition displays only confirmed alert text.

ALL CLEAREmail
Wording not preserved

A all clear message is documented at this point in the sequence, but its exact wording is not preserved in the public record. The public edition displays only confirmed alert text.

Message elements

How the first alert is built

To check this alert, Claude (an AI) read it in full 25 separate times, independently. Each read decided whether the message answers each of the six questions and gave a short reason. A final reviewer then weighed all 25 and wrote the plain-English verdict you see when you open a row. The score (for example 22/25) is how many reads agreed; the 25 individual reads are tucked underneath if you want to check them.

All state and county offices on Oʻahu, including all University of Hawaiʻi campuses and facilities on Oʻahu, will be closed Friday, April 10, due to expected severe weather conditions. A decision regarding government offices and UH facilities in Maui County and Hawaiʻi County will be made early Friday morning. The official announcements for Oʻahu were issued at 6:40 p.m., Thursday, April 9, by Gov. Josh Green and Honolulu Mayor Rick Blangiardi. Forecasts from the National Weather Service indicate a prolonged period of heavy rain through the morning and into the afternoon on Oʻahu, with the potential for flash flooding and possible power disruptions. Residents are strongly encouraged to limit travel unless absolutely necessary to allow emergency responders and utility crews to address weather-related impacts. University leadership continues to monitor conditions closely and will provide updates as additional information becomes available. Official County Notification Conditions will vary by county and location. The most timely and location-specific alerts will come from the county where you live. Sign-up information for each county’s notification system is provided below: City and County of Honolulu ( Oʻahu ) Maui County Hawaiʻi County You may also monitor these trusted sources for real-time weather updates: National Weather Service Hawaiʻi Emergency Management Agency The Pacific Disaster Center’s Disaster Alert app UH RAVE Alert System For added safety, all UH students, faculty and staff are encouraged to sign up for mobile alerts through the UH RAVE Alert system to receive emergency notifications directly.

  • Sourceabsent0/0

    Who is sending the alert and who is responding. People act faster on a message from a clearly identifiable, credible sender, such as a named department, the police, or a branded alert system, than on an anonymous notice. A branded signature counts.

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  • Hazardabsent0/0

    What the threat actually is. A complete warning names the specific danger, such as a shooter, a fire, a tornado, or a gas leak, rather than a vague emergency, because people decide what to do based on what they are facing.

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  • Locationabsent0/0

    Where the threat is. Saying whether danger is in a specific building, a part of campus, or area-wide lets people judge their own proximity and choose a safe direction. Without a where, a warning is hard to act on precisely.

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  • Guidanceabsent0/0

    The protective action to take. A clear, specific instruction, such as shelter in place, evacuate, avoid the area, or run-hide-fight, drives faster and more correct protective behavior than describing the threat alone.

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  • Timeabsent0/0

    When the message applies. A timestamp, the word now or immediately, or a phrase like until further notice tells the reader whether the danger is current and how quickly to act.

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  • Impactabsent0/0

    What the hazard could do to the people in its path. Beyond naming the threat, a complete warning conveys its potential consequences or severity, such as that a tornado can level buildings or that a leak could be explosive, so recipients grasp how much danger they are in. Research on warning message content finds that a concrete impact statement helps people personalize their risk and act sooner.

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Systematic AI judgments with visible reasoning, not human-validated codings.

About this analysis
Context

Background

On April 10, 2026, a stationary Kona low pressure system -- a cold upper-level low that forms near Hawaii in winter and spring -- produced historic rainfall on Oahu, triggering flash flood warnings from the National Weather Service Honolulu. Governor Josh Green announced the closure of all Oahu state offices and the University of Hawaii System closed all Oahu campuses and facilities, placing Maui County and Hawaii Island campuses on standby. The system-wide closure encompassed UH Manoa, UH West Oahu, Kapiolani Community College, Honolulu Community College, Leeward Community College, and Windward Community College. The April 2026 Kona low followed a March 2026 atmospheric river event that had already inundated Manoa Valley with what researchers later estimated as two trillion gallons of rainfall across Hawaii -- making spring 2026 one of the wettest stretches in decades. KITV reporting confirmed the closure alongside school and government shutdowns across the island. The UH System closure is documented as one of the first weather-triggered system-wide closures since the COVID-19 pandemic disruptions, illustrating how climate-related extreme weather is increasingly forcing coordinated higher-education emergency responses in Hawaii.
Analysis

Key Findings

This was the first UH System-wide weather-closure since the COVID-19 pandemic, coordinated with the Governor's office-wide Oahu shutdown
The April 2026 Kona low was part of a pattern of extreme rainfall events in Hawaii -- the second major flooding episode within six weeks after a historic March 2026 atmospheric river
All seven Oahu UH institutions (four-year and community colleges) were simultaneously closed, reflecting the scale and geographic targeting of the Kona low's impact
The event reinforces the archive's documentation that Hawaiian institution emergency alerts are increasingly driven by weather extremes rather than security incidents
Outcome
No UH campus fatalities reported. All Oahu UH campuses and facilities closed for the day. Maui and Hawaii Island UH campuses placed on standby. Widespread flooding, road closures, and power outages occurred across Oahu. Campuses reopened Monday, April 13.
Provenance

Sources

Every claim on this page is meant to be checkable. Open the links below—and the Verify this quote control under each confirmed alert—to read the original university, news, or archive page yourself. Hostnames are shown so you can see where you are going; archived copies survive when live pages move or disappear. See also our methodology.

  1. Official
  2. Official
  3. Official
  4. News
  5. News
  6. Official
Cite this case

Campus Alert Archive. "University of Hawaii System: Flooding, April 10, 2026." Incident of April 10, 2026. Added May 2026; last updated July 2026. https://campusalertarchive.com/case/university-of-hawaii-system-kona-low-flooding-closure-2026-04-10/

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Alert text quoted on this page remains the work of the issuing institution; the archive is a secondary source.

Tags
floodingkona-lowhawaiioahusystem-closureflash-floodsevere-weathercommunity-college2026climateuh-system
Added May 2026Updated July 2026Via ingestion